Saw-clamp.



(1S. MORTENSON.

SAW CLAMP.

APPLICATION FILED MAY 10, 1913 1,089,429, Patented Mar. 10, 1914.

2 SHEETS-SHEET 1.

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A TTUR/VEY C. S. MORTENSON.

SAW CLAMP. APPLICATION FILED MAY 10, 1913.

1 ,O89,429 Patented Mar. 10, 1914.

2 SHEETSSHEET 2.

INVEN TOR Carl LY-MOZZ'ZiSOZL,

BY gwwg4wm/ A TTOHNEV UNITED STATES PATENT OFFICE.

CARL S. MORTENSON, OF MFOLINE, ILLINOIS.

SAW-CLAMP.

Specification of Letters Patent.

Patented Mar. 10, 1914 Application filed May 10, 1913. Serial No. 766,694.

ful Improvements in Saw-Clamps, of which the following is a specification.

a saw to be sharpened or repaired.

provide a clamp of such character that a saw may be rigidly secured to a work bench or table with the least possible danger'of injury to the saw, or. that the saw will become loose in the clamp.

A further object of my invention is to provide a saw clamp of such construction that it may be easily and quickly attached to a work bench or other support, and inwhich a saw may be quickly and rlgidly secured; the simplicity of the attaching and clamping part, and their novel arrangement being such that the chances of breakage or derangement of the several parts is reduced to a minimum.

A still further object of my invention is to provide a saw clamp of such construction that when not in use it may be folded or collapsed in such manner as to require but a small amount of room in storage.

With these objects in view my invention consists in, a pair of parallelly disposed clamping members, one of which is secured at each end to bench clamps, and means for moving the other of the said clamping members into or out of clamping engagement with the first named member.

My invention further consists in a pair of parallelly disposed clamping members as above characterized, one of which is permanently secured at each end to bench clamps, yokes adjacent the said end and pivotally connected at one end thereto, the other of said clamping members being connected to the other end of said yokes and cooperating means upon said clamping member and yokes for forcing said movable clamping member into engagement with the ermanently secured member when the $9.1 yokes are turned on their pivots.

My invention further consists in various details of construction and arrangements of parts all as will be fully described hereinafter and particularly pointed out 1n the claims.

My invention will be better understood by reference to the accompanying drawings in which- Figure 1 is a view taken through a work bench and showing in elevation a clamp constructed in accordance with my invention,

F ig. 2 is a top plan view of the same, Fig. 3

This invention relates to saw clamps and is particularly adapted for use when holding upon an enlarged scale, Fig. 4 is an eleva- The primary object of my invention is to;

is a sectional view taken substantially upon the line mw of Fig. 2, and showing the same are connected and held in their different,

positions relatively to each other by a pair of yokes 3, one arranged adjacent each end. One end 4 of each yoke is pivoted to the inner saw engaging jaw 2, while the opposite end extends across and supports the opposite saw engaging jaw 1. This latter jaw is secured to the yoke member by a pin or bolt 8 which is rigidly secured to the said jaw member 1, and which extends through an opening 5 in said yoke end. The adjacent faces of the yoke end and the jaw member 1 are provided with cam faces, that is, the yoke member 3 is provided with a cam lug 6 which rides upon the adjacent face of the jaw member 1, and is adapted normally to fit into the cam depression 7 ,in the latter said face. The pin or bolt 8 which forms this pivotal connection, is extended beyond the yoke member and is provided with a head 9. A ,coil spring 10 is interposed between the bolt head 9 and the yoke to normally force the jaw member 1 into frictional engagement with the inner face of the yoke. It will be seen from this construction that when the yoke member is in vertical position, the lug 6 upon the inner face thereof will rest in the cam depression 7 upon the adjacentface of the saw clamping jaw 1, and when in this position the pressure of the coil spring 10 upon the bolt 8 forces the said jaw member outwardly, and away from its cooperating jaw member. When it is dethis position, and then the yoke members are turned slightly until the cam lug 6 rides up out of the depression upon the jaw mem ber 1 and forces the said jaw member toward the cooperating jaw member 2 and thus firmly grips the sawbetween the two faces.

For the purpose of securing the device thus assembled upon a work bench or table, I resort to the use of a clamp shown in the several figures, and which is fully illustrated in Fig. 3 of the drawings. Thisclamp comprises vertical members 11, each of which is provided with a pair of rearwardly extending arms 12 and 13, spaced apart a distance suflicient to admit of the device being 0- sitioned over the edge of the bench or ta le, and the lower arm 13 is provided with a thumb screw 14 for'holding the same securely in position. The upper end 15 of the 7 vertical member of the clamp is secured to the saw clamp through the medium of the bolt 16, which bolt secures together in pivotal relation, the end 4 of the yoke, and also the saw clamping jaw 2. It should be noted that the member 11 is straight and is secured between the outer face of the jaw 2 and the adjacent yoke end, so that it may fold against said outer face as shown in Fig. 4.

From the construction of the yoke members, and the clamps for attaching the device to the bench or table, it will be readily understood that when the device is not in use it may be quickly and easily detached from its position upon the table, and the securing clamps folded inwardly to lie in the same plane with the saw clamping jaws, and the okes also turned inwardly, thereby formlng a neat and compact structure which will occupy but little room.

Having described my invention, I claim:

1. In a device of the class described, a fixed and a movable jaw, pivotally mounted means connecting said jaws and adapted to move the same into and out of engagement with each other, and means for securing the device to a bench, said means being pivotally mounted upon the outer face of the fixed jaw and adapted to fold against said face, substantially as described.

2. A saw 'clamp comprising a air of parallelly disposed jaw members, yo .es ad'acent each end of the said jaw members an having their ends pivotally connected to said jaws respectively, and cooperating cam faces upon the adjacent faces of the said yoke and the said last named jaw member whereby the said jaw will be forced into engagement with the first named jaw member when the yokes, are turned on their pivots, substantially as described.

3. A saw clamp comprising a pair of parallelly disposed jaw members, yokes adjacent each end of the said jaw members and having their ends pivotally connected tosaid jaws respectively, cooperating cam faces upon the adjacent faces of the said yoke and the said last named jaw member, whereby the said jaw will be forced into engagement with the first named jaw member when the yokes are turned on their pivots, and means secured to one of said jaws for attaching the device to a bench, substantially as described.

4. A saw clamp comprising a pair of parallelly disposed jaw members, yokes ad jacent each end of the said jaw members and having their ends pivotally connected to said jaws respectively, and cooperating cam faces upon the adjacent faces of the said yoke and the said last named jaw member whereby the said jaw will be forced into or out of engagement with the first named jaw member when the yokes are turned on their pivots, substantially as described.

5. A saw clamp-comprising a stationary jaw, a movable jaw, a yoke pivotally mounted at each end of the first named jaw and embracing the movable jaw, cooperating cam faces upon the movable jaw and the adjacent ends of the yoke adapted to force said movable jaw into engagement with the first named jaw, and means whereby the movable jaw is held to frictionally engage the cooperating faces of the yoke member, substantially as described.

6. A saw clamp comprising fixed and movable parallelly disposed jaws, yokes adjacent each end of said jaws and having their opposite ends pivotally connected to said jaws respectively, cooperating means upon the adjacent faces of the said movable jaw and the said yoke end whereby said jaw is moved into' or out of engagement with the said opposite jaw when said yoke is turned on its pivot, and means for retracting said movable jaw and yieldingly holding the same into engagement with its cooperating yoke end, substantially as described.

7. A saw clamp comprising fixed and movable parallelly disposed jaws, yokes adjacent each end of said jaws and having their opposite ends pivotally connected to said jaws respectively, cooperating cam faces upon the adjacent faces of the said movable jaws and said yoke end whereby said jaw is moved into or out of engagement with the said opposite j awiwhen said yoke is turned on its pivot, and means for retracting said movable jaw and yieldingly holding the same into engagement with its cooperating yoke end, substantially as described.

8. A saw clamp comprising fixed and movable parallelly disposed jaws, yokes adjacent each end of said jaws and having their opposite ends ivotally connected to said jaws respective y, cooperating means upon the adjacent faces of the said movable jaw and said yoke end whereby said jaw is moved into or out of engagement with the said opposite jaw when said yoke is turned on its pivot, means for retracting said movable jaw and yieldingly holding the same into engagement with its cooperating yoke end, and attaching clamps pivoted to said fixed jaw to fold upon the same, substantially as described.

9. In a device of the class described a fixed and a movable jaw, a pair of yokes each having their ends pivotally connected to said jaw respectively, cooperating means on said movable jaw and the adjacent yoke ends for moving the last said jaw into and out of engagement with the fixed jaw, members pivotally connected to said fixed jaw between the outer face thereof and the adjacent yoke ends, and means on said members for attaching the device to a bench, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

CARL S. MORTEXSON.

Witnesses GEORGE TIMMERMAN, H. N. \VILLIAMS. 

